@inproceedings{SeboldtDachwald2003, author = {Seboldt, Wolfgang and Dachwald, Bernd}, title = {Solar sails for near-term advanced scientific deep space missions}, series = {Proceedings of the 8th International Workshop on Combustion and Propulsion}, booktitle = {Proceedings of the 8th International Workshop on Combustion and Propulsion}, pages = {14 Seiten}, year = {2003}, abstract = {Solar sails are propelled in space by reflecting solar photons off large mirroring surfaces, thereby transforming the momentum of the photons into a propulsive force. This innovative concept for low-thrust space propulsion works without any propellant and thus provides a wide range of opportunities for highenergy low-cost missions. Offering an efficient way of propulsion, solar sailcraft could close a gap in transportation options for highly demanding exploration missions within our solar system and even beyond. On December 17th, 1999, a significant step was made towards the realization of this technology: a lightweight solar sail structure with an area of 20 m × 20 m was successfully deployed on ground in a large facility at the German Aerospace Center (DLR) at Cologne. The deployment from a package of 60 cm × 60 cm × 65 cm with a total mass of less than 35 kg was achieved using four extremely light-weight carbon fiber reinforced plastics (CFRP) booms with a specific mass of 100 g/m. The paper briefly reviews the basic principles of solar sails as well as the technical concept and its realization in the ground demonstration experiment, performed in close cooperation between DLR and ESA. Next possible steps are outlined. They could comprise the in-orbit demonstration of the sail deployment on the upper stage of a low-cost rocket and the verification of the propulsion concept by an autonomous and free flying solar sail in the frame of a scientific mission. It is expected that the present design could be extended to sail sizes of about (40 m)2 up to even (70 m)2 without significant mass penalty. With these areas, the maximum achievable thrust at 1 AU would range between 10 and 40 mN - comparable to some electric thrusters. Such prototype sails with a mass between 50 and 150 kg plus a micro-spacecraft of 50 to 250 kg would have a maximum acceleration in the order of 0.1 mm/s2 at 1 AU, corresponding to a maximum ∆V-capability of about 3 km/s per year. Two near/medium-term mission examples to a near-Earth asteroid (NEA) will be discussed: a rendezvous mission and a sample return mission.}, language = {en} } @inproceedings{MathiakPlescherWillnecker2003, author = {Mathiak, Gerhard and Plescher, Engelbert and Willnecker, Rainer}, title = {Parabolic flight experiments about vibrational effects on diffusion experiments}, series = {54th International Astronautical Congress of the International Astronautical Federation (IAF) : Bremen, 29 Sept. 2003 through 3 Oct. 2003 ; vol. 1}, booktitle = {54th International Astronautical Congress of the International Astronautical Federation (IAF) : Bremen, 29 Sept. 2003 through 3 Oct. 2003 ; vol. 1}, organization = {International Astronautical Congress of the International Astronautical Federation <54, 2003, Bremen>}, pages = {4389 -- 4396}, year = {2003}, language = {de} } @incollection{GitterHornhardtKoewiusetal.2003, author = {Gitter, R. and Hornhardt, Ch. and Koewius, A. and [u.a.], and Wahle, Michael}, title = {Konstruieren mit Aluminium [Kapitel 4]}, series = {Aluminium-Taschenbuch / Hrsg.: Aluminium-Zentrale D{\"u}sseldorf. - Bd. 3: Weiterverarbeitung und Anwendung}, booktitle = {Aluminium-Taschenbuch / Hrsg.: Aluminium-Zentrale D{\"u}sseldorf. - Bd. 3: Weiterverarbeitung und Anwendung}, edition = {16. Auflage}, publisher = {Aluminium-Verlag}, address = {D{\"u}sseldorf}, isbn = {3-87017-275-4}, pages = {355 -- 599}, year = {2003}, language = {de} } @incollection{BrittenBraunHesseetal.2003, author = {Britten, G. and Braun, Carsten and Hesse, M. and Ballmann, Josef}, title = {Computational aeroelasticity with reduced structural models}, series = {Flow modulation and fluid-structure interaction at airplane wings : research results of the Collaborative Research Center SFB 401 at RWTH Aachen, University of Technology, Aachen, Germany / Josef Ballmann (Ed.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 84}, booktitle = {Flow modulation and fluid-structure interaction at airplane wings : research results of the Collaborative Research Center SFB 401 at RWTH Aachen, University of Technology, Aachen, Germany / Josef Ballmann (Ed.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 84}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-40209-8}, pages = {275 -- 299}, year = {2003}, language = {en} } @incollection{BraunBouckeHankeetal.2003, author = {Braun, Carsten and Boucke, Alexander and Hanke, M. and Karavas, Alexandros and Ballmann, Josef}, title = {Prediction of the model deformation of a high speed transport aircraft type wing by direct aeroelastic simulation}, series = {High performance computing in science and engineering '03. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2003 / Eds.: Egon Krause ...}, booktitle = {High performance computing in science and engineering '03. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2003 / Eds.: Egon Krause ...}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-540-40850-5}, pages = {331 -- 342}, year = {2003}, language = {de} } @incollection{BallmannBouckeBraun2003, author = {Ballmann, Josef and Boucke, Alexander and Braun, Carsten}, title = {Aeroelastic sensitivity in the transonic regime}, series = {Symposium Transsonicum IV : proceedings of the IUTAM symposium held in G{\"o}ttingen, Germany, 2 - 6 September 2002 / ed. by Helmut Sobieczky. Fluid mechanics and its applications. Vol. 73}, booktitle = {Symposium Transsonicum IV : proceedings of the IUTAM symposium held in G{\"o}ttingen, Germany, 2 - 6 September 2002 / ed. by Helmut Sobieczky. Fluid mechanics and its applications. Vol. 73}, publisher = {Kluwer Academic}, address = {Dordrecht}, isbn = {978-94-010-3998-7}, pages = {225 -- 236}, year = {2003}, language = {en} } @article{DachwaldSchmidtSeboldtetal.2003, author = {Dachwald, Bernd and Schmidt, Tanja D. and Seboldt, Wolfgang and Auweter-Kurtz,}, title = {Flight Opportunities from Mars to Earth for Piloted Missions Using Continuous Thrust Propulsion / Schmidt, Tanja D. ; Dachwald, Bernd ; Seboldt, Wolfgang ; Auweter-Kurtz, Monika}, publisher = {-}, pages = {1 -- 9}, year = {2003}, language = {en} } @article{HavermannSeilerGeorgeetal.2003, author = {Havermann, Marc and Seiler, F. and George, A. and Leopold, F.}, title = {Planar Velocity Visualization in High-Speed Wedge Flow using Doppler Picture Velocimetry (DPV) compared with Particle Image Velocimetry (PIV) / Seiler, F. ; Havermann, M. ; George, A. ; Leopold, F. ; Srulijes, J.}, series = {Journal of Visualization. 6 (2003), H. 3}, journal = {Journal of Visualization. 6 (2003), H. 3}, publisher = {-}, isbn = {1343-8875}, pages = {253 -- 262}, year = {2003}, language = {en} } @book{Havermann2003, author = {Havermann, Marc}, title = {PIV-Messungen im hohen {\"U}berschall am ISL-Stoßrohr-Windkanal : 11. Fachtagung Lasermethoden in der Str{\"o}mungsmesstechnik, PTB Braunschweig, 9. - 11. September 2003 / Institut Franco-Allemand de Recherches de Saint-Louis. Havermann, M. ...}, publisher = {ISL}, address = {Saint-Louis}, pages = {8 S. : Ill., graph. Darst.}, year = {2003}, language = {de} } @article{DachwaldSeboldt2003, author = {Dachwald, Bernd and Seboldt, Wolfgang}, title = {Solar sailcraft of the first generation technology development / Seboldt, Wolfgang ; Dachwald, Bernd}, year = {2003}, language = {en} }